How Tutorwise Scores Tutor Credibility: CaaS Explained

When you hire a tutor for your child, you are handing a stranger something that matters, and asking yourself one quiet question: can I trust this person? Tutorwise answers it with a credibility score, so the trust rests on evidence rather than on a well-written profile. The system is called CaaS, short for Credibility as a Service. It reads real, checkable signals about a tutor — verified identity and background checks, qualifications, results from genuine bookings, reviews from real families, and the tutor's standing in the wider network — and turns them into a single credibility score out of 100. The score is earned through work on the platform, not claimed in a bio, and it moves as a tutor does more. This article explains exactly what goes into that score, why some evidence counts for more than the rest, and how a parent should read it.

The problem a score is trying to solve

Choosing a tutor online usually means reading a paragraph the tutor wrote about themselves. It is polished, positive, and impossible to check. Two tutors can write near-identical profiles, and the more confident writer often wins, whether or not they are the better teacher. A five-star average does not fix this either: a handful of ratings from friends looks the same as fifty ratings from real families, and stars say nothing about whether the person has actually been background-checked.

The real cost of getting this wrong is not money. It is a term of your child's time, a dip in confidence before an exam, and the slow realisation that the lessons were not doing much. By the time that becomes obvious, the window before a GCSE or an 11+ has narrowed. Parents are right to want more than a nice paragraph before they commit.

That is the gap CaaS is built to close. Instead of asking you to trust what a tutor says about themselves, Tutorwise measures what can be verified and shows you the result.

How it works on Tutorwise

Here is the part that makes Tutorwise different from an ordinary directory. On most tutoring sites, a listing is self-reported: the tutor types their qualifications, writes their own summary, and the site displays it. Nobody checks it, and the site takes no position on whether it is true.

On Tutorwise, a tutor's credibility is a computed score, not a self-description. When a tutor joins, the platform does not simply publish their claims. It looks for evidence behind each one. Has their identity been confirmed? Have they passed a background check? Are their qualifications recorded? Have they completed real bookings, and did those families come back and leave reviews tied to actual lessons? Each of these is a signal the platform can see for itself. CaaS gathers the signals, weighs them, and produces the score you see on the profile.

The practical difference for a parent is this: you are not trusting a stranger's account of themselves, you are reading an earned, checkable score that the platform stands behind. A tutor cannot talk their way to a high number. They have to do the verifiable things that produce it. And because the score is recomputed as new evidence arrives, it reflects the tutor as they are now, not as they described themselves on the day they signed up.

The six things CaaS scores

CaaS does not treat every kind of evidence as equal, because not every kind of evidence tells you the same thing. It groups the signals into six areas, and each area is weighted by how strongly it points to a good outcome for your child.

Delivery. This is the tutor's actual track record on the platform: bookings completed, families returning, lessons delivered as promised. It carries the most weight of any single area, because past delivery is the best available guide to future delivery. A tutor who has taught real lessons and kept families coming back has shown you something a profile never can.

Credentials. Qualifications and subject expertise — the academic and professional record behind the teaching. It is the second-largest area, and it answers the plain question of whether the person knows their subject to the level they claim.

Network. A tutor's standing in the wider Tutorwise network: how they connect to other verified members and referrers. Reputation that other trusted people are willing to be associated with is harder to fake than a solo profile.

Trust. The verification signals that protect your child specifically — confirmed identity, a background check, a completed onboarding, verified contact details. Within this area a background check counts for the most, because for a parent it is the signal that matters more than any other.

Digital. The tutor's verifiable online footprint, which adds corroboration from outside the platform.

Impact. The wider difference a tutor's work has made. It is the smallest area, a rounding-up of contribution rather than a core of the score, but it rewards tutors who go beyond the minimum.

According to Tutorwise's published CaaS model (version 7), these six areas are weighted deliberately: delivery carries the largest share, at roughly 40 per cent of the score, credentials about a fifth, network standing next, and trust, digital and impact making up the remainder. The ordering is the point. What a tutor has actually done for real families outweighs everything they have written or claimed.

Why delivery is weighted highest

It would be easy to assume that qualifications should sit at the top. They matter, and CaaS gives them real weight. But a qualification tells you what a person knows, not whether they can teach it to a nervous fourteen-year-old on a wet Tuesday evening. Delivery does. A record of completed bookings and returning families is evidence of the whole job being done well, not just one part of it.

This is also the hardest area to fake. A tutor can buy a certificate mill qualification or write a glowing summary in an afternoon. They cannot manufacture a history of real families booking, staying, and coming back. Weighting delivery highest means the score is anchored to the thing that is both most predictive and most difficult to counterfeit.

The score has a floor you cannot skip

CaaS will not produce a score at all until a tutor has cleared a basic gate: they must either verify their identity or complete onboarding. Before that, there is no number to game and nothing to display. This matters because it stops an unverified account from appearing credible simply by filling in a form well. Verification comes first; the score comes after.

Once a tutor is past that gate, verification is not treated as a penalty to be avoided but as points to be earned. A confirmed identity, a background check, a completed onboarding, verified contact details — each adds to the trust area of the score rather than merely unlocking it. The message to tutors is straightforward: doing the checkable things is how you climb, not a hoop you clear once and forget.

The score is earned, and it moves

A CaaS score is not set on the day a tutor joins and left to gather dust. It is recomputed as new evidence lands: another completed booking, a fresh review tied to a real lesson, an added qualification, a renewed background check. A tutor who is active and delivering well sees their score reflect that. A profile that was strong two years ago but has done little since does not keep coasting on an old number.

For a parent, this means the score you read is current. You are not looking at a snapshot from sign-up day, you are looking at a running measure of a tutor as they are now.

What a parent should actually do with the score

Treat the CaaS score as a fast, honest filter, not the whole decision. A high score tells you the tutor has been verified and has a real record behind them, which clears the questions that a written profile leaves open. It saves you the work of trying to check identity, qualifications and background yourself, because the platform has already done it and shown you the result.

From there, the human judgement is still yours. Two tutors can both score well and still suit different children. Once the score has told you who is genuinely credible, use a first conversation or a trial lesson to judge fit — tone, patience, whether your child warms to them. CaaS narrows the field to people worth your time. It does not replace the last, personal call, which only you can make.

Frequently asked questions

What does CaaS actually stand for? Credibility as a Service. It is Tutorwise's system for turning a tutor's credibility into a score you can see and check, built from verified signals rather than self-description.

Can a tutor pay to raise their CaaS score? No. The score is computed from verifiable evidence — completed bookings, real reviews, confirmed identity and background checks, recorded qualifications. There is no way to buy the number, and the things that raise it are the things a parent would want checked anyway.

Does a higher score guarantee my child will do better? No score can promise a result. A high CaaS score tells you a tutor is genuinely credible and has a real track record, which removes the biggest risks. Whether a particular tutor is the right fit for your child is still a judgement best made in a first lesson.

Why is a CaaS score better than a five-star rating? Stars measure satisfaction and can be gamed by a few friendly reviews; they say nothing about whether a tutor has been background-checked or is qualified. CaaS is built from verified signals and weights a real delivery record above everything else, so it answers questions a star average leaves open.

Does verification cost the tutor anything or hold them back? Verification adds to a tutor's score rather than penalising them. Completing identity checks, a background check and onboarding earns trust points. It also unlocks the score in the first place, since Tutorwise will not display one until a tutor has verified their identity or completed onboarding.

Find a tutor you can actually check

Credibility you can verify is the whole point of Tutorwise. When you browse tutors, the CaaS score does the first round of checking for you, so you spend your time choosing between genuinely credible people rather than guessing from paragraphs. Browse verified tutors on Tutorwise and read the score before you book.

To go deeper, see How CaaS Works: Making Tutor Credibility Visible for the concept behind the score, Why Verified Credibility Beats a Five-Star Average for the case against star ratings, and How to Find an 11+ Tutor: What to Look For for putting a credibility check into practice.